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作者:

Cao, Liqiang (Cao, Liqiang.) | Chen, Xiangsheng (Chen, Xiangsheng.) | Lu, Dechun (Lu, Dechun.) | Zhang, Dingli (Zhang, Dingli.) | Su, Dong (Su, Dong.)

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摘要:

This paper conducts a theoretical analysis of ground settlements due to shield tunneling in multi-layered soils which are usually encountered in urban areas. The proposed theoretical solution which is based on the general form of the Mindlin's solution and Loganathan-Poulos formula can comprehensively consider the in-process tunneling parameters including: unbalanced face pressure, shield-soil friction, unbalanced tail grouting pressure, unbalanced secondary grouting pressure, overloading during tunneling and the ground volume loss. The method is verified by comparing with the field data from the Qinghuayuan Tunnel Project in terms of the ground surface settlements along the longitudinal and transverse direction. Due to the local settlement or heave caused by the certain tunneling parameters, the ground surface settlements calculated using current solution along the longitudinal direction presents an irregular S-shaped curve instead of the traditional S-shaped curve. Results also find that the effect of the unbalanced secondary grouting pressure and the overloading during tunneling cannot be ignored.

关键词:

Urban areas Theoretical analysis Qinghuayuan Tunnel Ground settlements Multi-layered soils Shield Tunneling

作者机构:

  • [ 1 ] [Cao, Liqiang]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Lu, Dechun]Beijing Univ Technol, Inst Geotech & Underground Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Cao, Liqiang]Shenzhen Univ, Underground Polis Acad, Shenzhen 518060, Peoples R China
  • [ 4 ] [Chen, Xiangsheng]Shenzhen Univ, Underground Polis Acad, Shenzhen 518060, Peoples R China
  • [ 5 ] [Su, Dong]Shenzhen Univ, Underground Polis Acad, Shenzhen 518060, Peoples R China
  • [ 6 ] [Cao, Liqiang]Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, Beijing 100044, Peoples R China
  • [ 7 ] [Zhang, Dingli]Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, Beijing 100044, Peoples R China
  • [ 8 ] [Chen, Xiangsheng]Shenzhen Univ, Key Lab Resilient Infrastruct Coastal Cities MOE, Shenzhen 518060, Peoples R China
  • [ 9 ] [Su, Dong]Shenzhen Univ, Key Lab Resilient Infrastruct Coastal Cities MOE, Shenzhen 518060, Peoples R China

通讯作者信息:

  • [Chen, Xiangsheng]Shenzhen Univ, Underground Polis Acad, Shenzhen 518060, Peoples R China;;[Chen, Xiangsheng]Shenzhen Univ, Key Lab Resilient Infrastruct Coastal Cities MOE, Shenzhen 518060, Peoples R China

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来源 :

UNDERGROUND SPACE

ISSN: 2096-2754

年份: 2024

卷: 16

页码: 29-43

6 . 4 0 0

JCR@2022

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 18

ESI高被引论文在榜: 0 展开所有

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